Which of the following may constitute national origin discrimination?

Group of answer choices

Dasha is often ill$-$treated at work because her father is a Ukrainian.

Sharonda, a light$-$complexioned African$-$American, receives more job offers than her other African$-$American friends.

Nathan is not put on any international assignments because he is not comfortable living in other countries.

Mae is often sent on projects to Asia because she knows two to three Asian languages.